2300471

Information

• Patent Grant
• 2300471

• References
• Source

• Patent Number

  2,300,471

• Date Filed

  Not available

• Date Issued

  Tuesday, November 3, 1942
  81 years ago

• CPC

  • H02J7/20 - due to variation of continuously variable ohmic resistor

• US Classifications

  • 338 - Electrical resistors